30 weeks and still confused!!!

Hi everyone my name is Lizzie, i'm 27 and having a baby girl any day now. I already have one seven year old daughter, her name is RebekahLunaRose. I want to name my second little girl Abigail but can't decide on a middle name. I'm more into names with a mystical feel, if you know what i mean. and Adam (my husband) is into German names like Sasha or Mischa.

We have decided to give her two middle names one of my liking and the other of my husbands liking. Please can you help us?

I want to find a mystical middle name and a German/Russian type middle name to go with Abigail. And want them to sound good together.